Question

public void CAPTURE()
{
    final ListView mListView = (ListView)findViewById(R.id.lvImage);    

    .... set adapter ... 

    mListView.setOnItemClickListener(new OnItemClickListener() {
        public void onItemClick(AdapterView<?> myAdapter, View myView,final int position,long mylng)
        {               

            Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

            File imagesFolder = new file(Environment.getExternalStorageDirectory(), "MyImage");
            imagesFolder.mkdirs();
            filePath = "/MyImage/test.png";
            File image = new File(imagesFolder, "test.png");
            Uri uriSavedImage = Uri.fromFile(image);
            intent.putExtra(MediaStore.EXTRA_OUTPUT, uriSavedImage);
            startActivityForResult(intent, CAMERA_REQUEST);
        }
    });
}


protected void onActivityResult(int requestCode, int resultCode, Intent data) 
{

    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode == RESULT_OK && requestCode == CAMERA_REQUEST) 
    {

        String p = Environment.getExternalStorageDirectory() + filePath;

            bitmap = BitmapFactory.decodeFile(p);
            ByteArrayOutputStream stream = new ByteArrayOutputStream();
            bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);            
            byte[] byteArray = stream.toByteArray();


            Intent intent = new Intent(getApplicationContext(),ImageActivity.class);
            intent.putExtra("image", byteArray);
            intent.putExtra("path", p);

            startActivity(intent);
        }

     }
}

我在点击列表视图中的项目并创建文件夹时调用相机意图和文件图像这是有效的我去文件夹，看到一个完美的图像但是我的onActivityResult仍然没有工作我想将path和imagebyte传递给下一个活动

我尝试在startActivityForResult（intent，CAMERA_REQUEST）下放置finish（）; 但没有工作

我该怎么办请帮助我。抱歉英文不好

非常感谢

Answer 1

通过此方法，您可以上传相机中的图像：

Uri myPicture;
private static final int CAMERA_REQUEST = 1888;
public void camera_upload()
{

    ContentValues values = new ContentValues();
    values.put(Media.TITLE, "My demo image");
    values.put(Media.DESCRIPTION, "Image Captured by Camera via an Intent");
    myPicture = getContentResolver().insert(Media.EXTERNAL_CONTENT_URI, values);

    Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
    cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, myPicture);
    startActivityForResult(cameraIntent, CAMERA_REQUEST);

}

还在清单中提供以下权限：

 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
      <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
        <uses-permission android:name="android.permission.CAMERA" />

转到下一个活动的方法

Intent i = new Intent(getApplicationContext(),
                        Set_theme_Activity.class);
                // passing array index
                i.putExtra("id", position);
                startActivity(i);
                finish();

在活动中获取图片的方法（NextActivity）

Intent i = getIntent();
        // Selected image id
        int position = i.getExtras().getInt("id");
        ImageAdaptor imageAdapter = new ImageAdaptor(this);

Answer 2

嘿，你没有从onactivityresult中提取意图中的数据，而这些数据是你在startactivityforresult中的意图。

如何在ListView中使用相机意图

2 个答案: